* {
  margin: 0;
  padding: 0;
  list-style: none;
  outline: 0
}

html,
body {
  height: 100%;
  height: 100%
}

.wrap {
  padding: 120px 0
}

.btnBbox {
  margin: 0 auto;
  width: 600px;
  text-align: center
}

.btnBbox .selectbox {
  display: inline-block;
  vertical-align: top
}

.btnBbox .selectbox {
  display: inline-block;
  position: relative;
  width: 120px
}

.btnBbox .selectbox .text {
  width: 100%;
  height: 40px;
  text-align: center;
  border: 0;
  background: #ececec;
  border-radius: 5px;
  display: block;
  line-height: 40px;
  color: #3f3f3f;
  cursor: pointer;
  font-size: 16px;
  transition: all ease .2s
}

.btnBbox .selectbox .text:hover {
  background: #e4e4e4
}

.btnBbox .selectbox .box {
  position: absolute;
  width: 100%;
  padding: 5px 0;
  background: #ececec;
  color: #666;
  border-radius: 5px;
  z-index: 10000;
  margin-top: 5px;
  display: none;
  font-size: 14px
}

.btnBbox .selectbox .box li {
  width: 100%;
  height: 30px;
  text-align: center;
  line-height: 30px;
  transition: all ease .2s;
  cursor: pointer
}

.btnBbox .selectbox .box li:hover {
  background: #1abb85;
  color: #fff
}

.btnBbox .selectbox.active .text {
  background: #1abb85;
  color: #fff
}

.btnBbox .btn {
  width: 120px;
  border: 0;
  background: #3386e6;
  color: #fff;
  border-radius: 5px;
  height: 40px;
  cursor: pointer;
  font-size: 16px;
  margin-right: 10px
}

.btnBbox .btn:hover {
  background: #388cec
}

.picBox {
  text-align: center;
  margin-top: 30px
}

.picBox .list {
  display: inline-block;
  width: 600px;
  height: 600px;
  position: relative
}

.picBox .list li {
  position: absolute;
  overflow: hidden;
  border-radius: 0;
  background-image: url(../img/牛牛.png);
  box-shadow: 0 0 6px rgba(255, 255, 255, .6);
  cursor: pointer;
  overflow: hidden
}